What are cat hairball cans like?

Cat hairball cans generally add gut-lubricating ingredients to help pass accumulated hair, with some effect. But do not feed them often; cans are mainly for fullness and appetite and rarely contain hairball agents, and many are new products with immature craft that may cause reactions. Also, cans are less effective than hairball paste; for hairball concern, use hairball paste, tablets, or cat grass, and brush more.